Steel sleeve receiving construction device and method of shield tunneling machine

Abstract

The invention discloses a steel sleeve receiving construction device and method of a shield tunneling machine, and relates to the technical field of shield tunneling machines, the steel sleeve receiving construction device comprises a well seat, an open groove is formed in the position, close to the left side, of the bottom of an inner cavity of the well seat, a first magnet is fixedly connected into the open groove, and a base is arranged at the position, close to the right side, of the bottom of the inner cavity of the well seat; a sealing disc is fixedly connected to the left side of the base, a plurality of inclined rods are fixedly connected to the left side of the sealing disc, through mutual cooperation of structures such as an electric telescopic rod, a first magnet, an elastic pipe and an elastic cover, after the base makes contact with the bottom of the well base, an inserting rod is aligned to an inserting hole in the bottom of the well base, and therefore the base is positioned; a first magnet and a second magnet can further limit the base and the sealing disc, after the shield tunneling machine enters the base and the steel sleeve and stops working, a water pipe is connected into an outer threaded pipe, and water cleans the blade position of the shield tunneling machine through an elastic pipe and a spray head.

Description

Technical Field

[0001] The invention relates to the technical field of shield machines, and in particular to a steel sleeve receiving construction device and method for a shield machine. Background Art

[0002] The shield construction method is a construction method for underground tunneling. It uses a shield machine to dig underground. While preventing the collapse of the soft foundation excavation surface or maintaining the stability of the excavation surface, the tunnel excavation and lining operations are carried out safely inside the machine. The launching and receiving of the shield machine is the most critical link in the shield construction, which plays a decisive role in the success or failure of the entire project.

[0003] However, there are some problems in the receiving process of the existing shield machine. At present, the shield machine uses a steel sleeve receiving device during the receiving process. The installation and disassembly of the steel sleeve receiving device are relatively cumbersome during use. There may be a certain error in the installation accuracy of the steel sleeve receiving device. At the same time, after the shield machine enters the steel sleeve, it is not convenient to clean the mud at the blade position of the shield machine, which will increase the subsequent workload. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a steel sleeve receiving construction device and method for a shield machine.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel sleeve receiving construction device for a shield machine, comprising a well seat, a groove is provided at the bottom of the well seat inner cavity near the left side, a first magnet is fixedly connected in the groove, a base is provided at the bottom of the well seat inner cavity near the right side, a sealing disk is fixedly connected to the left side of the base, a plurality of inclined rods are fixedly connected to the left side of the sealing disk, a second magnet is fixedly connected to the end of the inclined rod away from the sealing disk, the bottoms of the plurality of second magnets are jointly attached to the top of the first magnet, a plurality of support columns are fixedly connected to the bottom of the base near the front and rear sides, cavities are provided in the inner cavities of the support columns near the four corners of the bottom of the base, The outer edges of the support columns at the bottom of the base near the four corners are provided with vertical grooves, and the vertical grooves and the cavity are arranged to penetrate each other. An electric telescopic rod is fixedly connected to the top of the cavity, and four cross bars are fixedly connected to the outer edges of the electric telescopic rod near the bottom, and the end of the cross bar away from the electric telescopic rod passes through the adjacent vertical grooves, and the end of the cross bar away from the electric telescopic rod is fixedly connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to a plug rod, and four connecting plates are fixedly connected to the outer edges of the support columns at the four corners of the bottom of the base near the bottom, and through holes are provided in the inner cavities of the connecting plates, and the bottom ends of the plug rods pass through the adjacent through holes, and a receiving mechanism is provided on the top of the base.

[0006] Preferably, the receiving mechanism comprises three steel sleeves, the bottoms of the three steel sleeves are jointly fitted on the top of the base, a plurality of L-shaped threaded rods are fixedly connected on the front and rear sides of the base, two fixing plates are fixedly connected on the front and rear sides of the steel sleeve near the bottom, connecting holes are provided on the fixing plates, the connecting holes are sleeved on the outer edges of adjacent L-shaped threaded rods, the outer edges of the L-shaped threaded rods are threadedly connected with threaded cylinders, the threaded cylinders are located on the tops of adjacent fixing plates, hooks are fixedly connected on the front and rear sides of the steel sleeve near the top, a first semicircular groove is provided at the center of the left and right sides of the steel sleeve, an arc magnet is fixedly connected in the first semicircular groove, two second semicircular grooves are provided on the left and right sides of the steel sleeve, a sealing plate is fixedly connected in the second semicircular groove, two adjacent arc magnets are fitted together, and two adjacent sealing plates are fitted together.

[0007] Preferably, a fixed cylinder is fixedly connected to the center of the top of the steel sleeve, a telescopic tube is fixedly connected to the top of the fixed cylinder, a connecting cover is fixedly connected to the top of the telescopic tube, a movable ring is sleeved on the outer edge of the telescopic tube near the top, L-shaped rods are fixedly connected on the left and right sides of the movable ring, and the ends of two adjacent L-shaped rods away from the movable ring are commonly fixedly connected to a fixed ring, and a plurality of discharge holes are opened on the outer edge of the fixed cylinder.

[0008] Preferably, a spring is fixedly connected to the center of the right side of the sealing disk, an elastic cover is fixedly connected to the right end of the spring, and the elastic cover is located between the base and the adjacent steel sleeve.

[0009] Preferably, the sealing disk is provided with a plurality of limiting holes, each of which is fixedly connected to an externally threaded tube, each of which is fixedly connected to an elastic tube at the right end, and a plurality of transverse holes are provided on the left side of the elastic cover near the outer edge, and the right end of the elastic tube passes through an adjacent transverse hole and is fixedly connected thereto.

[0010] Preferably, the right end of the elastic tube is fixedly connected with a nozzle, the nozzle is located in the inner cavity of the elastic cover, and the outer edge of the external threaded tube is threadedly connected with a nut.

[0011] Preferably, three first arc-shaped T-shaped grooves are opened on the side wall of the inner cavity of the base, and second arc-shaped T-shaped grooves are opened on the side wall of the inner cavity of the steel sleeve. Second sealing rings are provided in the first arc-shaped T-shaped grooves, and first sealing rings are provided in the second arc-shaped T-shaped grooves. The adjacent first sealing rings and second sealing rings are arranged to fit each other.

[0012] Preferably, a plurality of insertion holes are provided at the bottom of the inner cavity of the well seat near the right side, and the bottom end of the insertion rod extends to the inner cavity of the adjacent insertion hole.

[0013] A method for a steel sleeve receiving construction device of a shield machine comprises the following steps:

[0014] S1: Place the base and the sealing disk inside the well seat by means of a crane, the bottom end of the support column at the bottom of the base contacts the bottom of the inner cavity of the well seat, when the bottom end of the plug rod is aligned with the adjacent socket, start the electric telescopic rod, the electric telescopic rod drives the cross bar to move downward, the cross bar drives the connecting disk to move downward, the connecting disk drives the plug rod to move downward, the plug rod is inserted into the adjacent socket, the oblique rod on the left side of the sealing disk drives the second magnet to move downward, the bottom of the second magnet contacts the first magnet, the bottom of the second magnet is adsorbed and fits with the top of the first magnet, thereby limiting the base and the sealing disk;

[0015] S2: After the base and the sealing disk are limited, the three steel sleeves are placed on the top of the base in sequence by a crane. The three steel sleeves are connected by adjacent arc magnets. When the steel sleeves are moved to the top of the base, the fixing plates on the front and rear sides of the steel sleeves are aligned with the L-shaped threaded rods, and the fixing plates are sleeved on the surfaces of the adjacent L-shaped threaded rods. After the three steel sleeves are located at the top of the base, the threaded cylinders are rotated to the surfaces of the adjacent L-shaped threaded rods by an external device, and the threaded cylinders limit the fixing plates, thereby limiting the steel sleeves.

[0016] S3: Then, cement-water glass double liquid slurry is injected into the connection cover, the cement-water glass double liquid slurry flows into the telescopic tube and the fixed tube, the cement-water glass double liquid slurry flows out from the holes on the surface of the fixed tube, and the cement-water glass double liquid slurry fills the gap between the steel sleeve and the formation to form a water stop ring;

[0017] S4: When the shield machine enters the base and the steel sleeve, the left side of the shield machine will first contact the elastic cover, and the shield machine will gradually drive the elastic cover to move to the left. The elastic cover drives the spring and the elastic tube to compress, and the first sealing ring and the second sealing ring will seal between the steel sleeve, the base and the shield machine;

[0018] S5: After the shield machine stops working inside the base and steel sleeve, connect the water pipe to the left end of the external threaded pipe, connect the water pipe and the external threaded pipe through the nut, and the water inside the water pipe will flow into the elastic pipe through the external threaded pipe, and finally clean the mud at the blade position on the left side of the shield machine through the nozzle, thereby reducing the subsequent workload;

[0019] S6: When the shield machine needs to be taken out, first take out the threaded barrel from the surface of the L-shaped threaded rod, and then use the crane to drive the hook and the steel sleeve to move out from the top of the base, so that the shield machine can be taken out.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention can realize the positioning function of the base by aligning the insertion rod with the insertion hole at the bottom of the well seat after the base contacts the bottom of the well seat through the mutual cooperation between the electric telescopic rod, the first magnet, the elastic tube, the elastic cover and other structures. The first magnet and the second magnet can further limit the base and the sealing disk. After the shield machine enters the base and the steel sleeve and stops working, the water pipe is connected to the external threaded pipe, and the water passes through the elastic tube and the nozzle to clean the blade position of the shield machine.

[0022] Through the mutual cooperation among structures such as steel sleeve, telescopic tube, threaded tube, arc magnet, etc., the crane can move the steel sleeve to the top of the base through the hook, align the fixed plate on the steel sleeve with the L-shaped threaded rod, and rotate the threaded tube to the surface of the L-shaped threaded rod to limit the steel sleeve. The steel sleeves are connected by arc magnets, and the sealing plate seals the two adjacent steel sleeves, the steel sleeve and the sealing plate, and the steel sleeve and the well seat. The fixed tube can discharge the cement-water glass double slurry, and the cement-water glass double slurry fills the gap between the steel sleeve and the formation to form a water stop ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereogram of the present invention;

[0024] Figure 2 It is an exploded view of the present invention;

[0025] Figure 3 A top view of the well seat of the component of the present invention;

[0026] Figure 4 This is a schematic diagram of the sealing disk structure of the component of the present invention;

[0027] Figure 5 This is a schematic diagram of the bottom view of the steel sleeve component of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the telescopic tube component of the present invention;

[0029] Figure 7 It is a schematic diagram of the base structure of the component of the present invention;

[0030] Figure 8 This is a schematic diagram of the elastic cover structure of the component of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the electric telescopic rod component of the present invention.

[0032] Numbers in the figure: 1. well seat; 2. first magnet; 3. sealing disk; 4. base; 5. support column; 6. inclined rod; 7. second magnet; 8. steel sleeve; 9. hook; 10. threaded tube; 11. fixed plate; 12. elastic cover; 13. L-shaped threaded rod; 14. elastic tube; 15. first sealing ring; 16. sealing plate; 17. arc magnet; 18. fixed tube; 19. telescopic tube; 20. connecting cover; 21. movable ring; 22. L-shaped rod; 23. fixed ring; 24. second sealing ring; 25. nut; 26. external threaded tube; 27. nozzle; 28. spring; 29. ​​connecting plate; 30. electric telescopic rod; 31. cross bar; 32. connecting disk; 33. plug rod. DETAILED DESCRIPTION

[0033] See also Figure 1-9 , the present invention provides a technical solution:

[0034] Embodiment 1:

[0035] A steel sleeve receiving construction device for a shield machine comprises a well seat 1, a groove is provided at the bottom of the inner cavity of the well seat 1 near the left side, a first magnet 2 is fixedly connected in the groove, a base 4 is provided at the bottom of the inner cavity of the well seat 1 near the right side, a sealing disk 3 is fixedly connected to the left side of the base 4, a plurality of inclined rods 6 are fixedly connected to the left side of the sealing disk 3, a second magnet 7 is fixedly connected to the end of the inclined rod 6 away from the sealing disk 3, the bottoms of the plurality of second magnets 7 are jointly attached to the top of the first magnet 2, a plurality of support columns 5 are fixedly connected at the bottom of the base 4 near the front and rear sides, a cavity is provided at the inner cavity of the support columns 5 near the four corners of the bottom of the base 4, vertical grooves are provided at the outer edges of the support columns 5 near the four corners of the bottom of the base 4, and the vertical grooves and the cavities are mutually The through-type setting is adopted, the top of the cavity is fixedly connected with an electric telescopic rod 30, and the outer edge of the electric telescopic rod 30 is fixedly connected with four cross bars 31 near the bottom, and the end of the cross bar 31 away from the electric telescopic rod 30 passes through the adjacent vertical slot, and the end of the cross bar 31 away from the electric telescopic rod 30 is fixedly connected with a connecting plate 32, and the bottom of the connecting plate 32 is fixedly connected with a plug rod 33, and the outer edge of the support column 5 near the four corners of the bottom of the base 4 is fixedly connected with four connecting plates 29 near the bottom, and the inner cavity of the connecting plate 29 is provided with through holes, and the bottom end of the plug rod 33 passes through the adjacent through holes, and the top of the base 4 is provided with a receiving mechanism, and a plurality of plug holes are provided near the right side of the bottom of the inner cavity of the well seat 1, and the bottom end of the plug rod 33 extends to the inner cavity of the adjacent plug hole;

[0036] After the base 4 contacts the bottom of the well seat 1, the insertion rod 33 is aligned with the insertion hole at the bottom of the well seat 1, so as to perform the positioning function of the base 4. The first magnet 2 and the second magnet 7 can further limit the base 4 and the sealing disk 3. The shield machine enters the base 4 and the steel sleeve 8, and after stopping working, the water pipe is connected to the external threaded pipe 26, and the water passes through the elastic tube 14 and the nozzle 27 to clean the shield machine blade position.

[0037] Embodiment 2:

[0038] The receiving mechanism includes three steel sleeves 8, the bottoms of the three steel sleeves 8 are jointly attached to the top of the base 4, and a plurality of L-shaped threaded rods 13 are fixedly connected to the front and rear sides of the base 4. Two fixing plates 11 are fixedly connected to the front and rear sides of the steel sleeve 8 near the bottom, and the fixing plates 11 are provided with connecting holes, and the connecting holes are sleeved on the outer edges of the adjacent L-shaped threaded rods 13. The outer edges of the L-shaped threaded rods 13 are threadedly connected with threaded cylinders 10, and the threaded cylinders 10 are located on the tops of the adjacent fixing plates 11. Hooks 9 are fixedly connected to the front and rear sides of the steel sleeve 8 near the top, and a first semicircular groove is provided at the center of the left and right sides of the steel sleeve 8. Arc magnets 17 are fixedly connected in the first semicircular grooves. The steel sleeve 8 Two second semicircular grooves are provided on both sides, and sealing plates 16 are fixedly connected in the second semicircular grooves. Two adjacent arc-shaped magnets 17 are arranged to fit each other, and two adjacent sealing plates 16 are arranged to fit each other. A fixed cylinder 18 is fixedly connected to the center of the top of the steel sleeve 8, and a telescopic tube 19 is fixedly connected to the top of the fixed cylinder 18. A connecting cover 20 is fixedly connected to the top of the telescopic tube 19. A movable ring 21 is sleeved near the top of the outer edge of the telescopic tube 19. L-shaped rods 22 are fixedly connected to the left and right sides of the movable ring 21. A fixed ring 23 is commonly fixedly connected to one end of two adjacent L-shaped rods 22 away from the movable ring 21, and a plurality of discharge holes are provided on the outer edge of the fixed cylinder 18;

[0039] A spring 28 is fixedly connected to the center of the right side of the sealing disk 3, and the right end of the spring 28 is fixedly connected to the elastic cover 12. The elastic cover 12 is located between the base 4 and the adjacent steel sleeve 8. A plurality of limiting holes are provided on the sealing disk 3, and the limiting holes are fixedly connected to the external threaded tube 26. The right end of the external threaded tube 26 is fixedly connected to the elastic tube 14. A plurality of transverse holes are provided on the left side of the elastic cover 12 near the outer edge. The right end of the elastic tube 14 penetrates the adjacent transverse holes and is fixedly connected thereto. A nozzle 27 is fixedly connected to the right end of the elastic tube 14. The nozzle 27 is located in the inner cavity of the elastic cover 12. The outer edge of the external threaded tube 26 is threadedly connected with a nut 25. Three first arc-shaped T-slots are provided on the inner cavity side wall of the base 4, and a second arc-shaped T-slot is provided on the inner cavity side wall of the steel sleeve 8. A second sealing ring 24 is provided in the first arc-shaped T-slot, and a first sealing ring 15 is provided in the second arc-shaped T-slot. The adjacent first sealing rings 15 and second sealing rings 24 are arranged to fit each other.

[0040] The crane moves the steel sleeve 8 to the top of the base 4 through the hook 9, the fixed plate 11 on the steel sleeve 8 is aligned with the L-shaped threaded rod 13, and the threaded tube 10 is rotated to the surface of the L-shaped threaded rod 13, so as to limit the steel sleeve 8. The steel sleeves 8 are connected by arc magnets 17, and the sealing plate 16 seals the two adjacent steel sleeves 8 and the steel sleeve 8 and the sealing disk 3 and the steel sleeve 8 and the well seat 1. The fixed tube 18 can discharge the cement-water glass double slurry, and the cement-water glass double slurry fills the gap between the steel sleeve 8 and the formation to form a water stop ring.

[0041] A method for a steel sleeve receiving construction device of a shield machine comprises the following steps:

[0042] S1: First, the base 4 and the sealing disk 3 are placed inside the well seat 1 by means of a crane, and the bottom end of the support column 5 at the bottom of the base 4 contacts the bottom of the inner cavity of the well seat 1. When the bottom end of the plug rod 33 is aligned with the adjacent socket, the electric telescopic rod 30 is started, and the electric telescopic rod 30 drives the cross bar 31 to move downward, and the cross bar 31 drives the connecting disk 32 to move downward, and the connecting disk 32 drives the plug rod 33 to move downward, and the plug rod 33 is inserted into the adjacent socket. The inclined rod 6 on the left side of the sealing disk 3 drives the second magnet 7 to move downward, and the bottom of the second magnet 7 contacts the first magnet 2, and the bottom of the second magnet 7 is adsorbed and fits with the top of the first magnet 2, thereby limiting the base 4 and the sealing disk 3;

[0043] S2: After the base 4 and the sealing disk 3 are limited, the three steel sleeves 8 are placed on the top of the base 4 in sequence by a crane, and the three steel sleeves 8 are connected by adjacent arc magnets 17. When the steel sleeve 8 moves to the top of the base 4, the fixing plates 11 on the front and rear sides of the steel sleeve 8 are aligned with the L-shaped threaded rod 13, and the fixing plates 11 are sleeved on the surfaces of the adjacent L-shaped threaded rods 13. After the three steel sleeves 8 are located together on the top of the base 4, the threaded cylinder 10 is rotated to the surface of the adjacent L-shaped threaded rod 13 by an external device, and the threaded cylinder 10 limits the fixing plates 11, thereby limiting the steel sleeve 8;

[0044] S3: Then, cement-water glass double liquid slurry is injected into the connection cover 20, and the cement-water glass double liquid slurry flows into the telescopic tube 19 and the fixed tube 18, and the cement-water glass double liquid slurry flows out from the holes on the surface of the fixed tube 18, and the cement-water glass double liquid slurry fills the gap between the steel sleeve 8 and the formation to form a water stop ring;

[0045] S4: When the shield machine enters the base 4 and the steel sleeve 8, the left side of the shield machine will first contact the elastic cover 12, and the shield machine will gradually drive the elastic cover 12 to move to the left, and the elastic cover 12 drives the spring 28 and the elastic tube 14 to be compressed, and the first sealing ring 15 and the second sealing ring 24 will seal between the steel sleeve 8, the base 4 and the shield machine;

[0046] S5: After the shield machine stops working inside the base 4 and the steel sleeve 8, the water pipe is connected to the left end of the external threaded pipe 26, and the water pipe and the external threaded pipe 26 are connected by the nut 25. The water inside the water pipe will flow into the elastic tube 14 through the external threaded pipe 26, and finally the mud at the blade position on the left side of the shield machine is cleaned through the nozzle 27, thereby reducing the subsequent workload;

[0047] S6: When the shield machine needs to be taken out, first take out the threaded barrel 10 from the surface of the L-shaped threaded rod 13, and then use the crane to drive the hook 9 and the steel sleeve 8 to move out from the top of the base 4, so that the shield machine can be taken out.

[0048] Working principle: first place the base 4 and the sealing disk 3 inside the well seat 1 by means of a crane, the bottom end of the supporting column 5 at the bottom of the base 4 contacts the bottom of the inner cavity of the well seat 1, when the bottom end of the plug rod 33 is aligned with the adjacent socket, start the electric telescopic rod 30, the electric telescopic rod 30 drives the cross bar 31 to move downward, the cross bar 31 drives the connecting disk 32 to move downward, the connecting disk 32 drives the plug rod 33 to move downward, the plug rod 33 is inserted into the adjacent socket, the inclined rod 6 on the left side of the sealing disk 3 drives the second magnet 7 to move downward, the bottom of the second magnet 7 contacts the first magnet 2, the bottom of the second magnet 7 is adsorbed and fits with the top of the first magnet 2, thereby limiting the base 4 and the sealing disk 3, after the base 4 and the sealing disk 3 are limited, the three steel sleeves 8 are placed on the top of the base 4 in sequence by means of a crane, and the three The steel sleeves 8 are connected by adjacent arc magnets 17. When the steel sleeves 8 are moved to the top of the base 4, the fixing plates 11 on the front and rear sides of the steel sleeves 8 are aligned with the L-shaped threaded rods 13, and the fixing plates 11 are sleeved on the surfaces of the adjacent L-shaped threaded rods 13. After the three steel sleeves 8 are located together on the top of the base 4, the threaded tubes 10 are rotated to the surfaces of the adjacent L-shaped threaded rods 13 through external equipment, and the threaded tubes 10 limit the fixing plates 11, thereby limiting the steel sleeves 8. After that, cement-water glass double slurry is injected into the interior of the connection cover 20, and the cement-water glass double slurry flows into the interior of the telescopic tube 19 and the fixing tube 18, and the cement-water glass double slurry flows out from the holes on the surface of the fixing tube 18. The cement-water glass double slurry fills the gap between the steel sleeves 8 and the formation to form a water stop ring.

[0049] When the shield machine enters the base 4 and the steel sleeve 8, the left side of the shield machine will first contact the elastic cover 12, and the shield machine will gradually drive the elastic cover 12 to move to the left, and the elastic cover 12 drives the spring 28 and the elastic tube 14 to be compressed, and the first sealing ring 15 and the second sealing ring 24 will seal the steel sleeve 8, the base 4 and the shield machine. After the shield machine stops working inside the base 4 and the steel sleeve 8, the water pipe is connected to the left end of the external threaded pipe 26, and the water pipe and the external threaded pipe 26 are connected by the nut 25. The water inside the water pipe will flow into the elastic tube 14 through the external threaded pipe 26, and finally the mud at the blade position on the left side of the shield machine will be cleaned through the nozzle 27, thereby reducing the subsequent workload. When the shield machine needs to be taken out, the threaded barrel 10 is first taken out from the surface of the L-shaped threaded rod 13, and then the hook 9 and the steel sleeve 8 are driven by the crane to move out from the top of the base 4, so that the shield machine can be taken out.

Claims

1. A steel sleeve receiving construction device for a shield machine, comprising a well seat (1), characterized in that: A groove is provided at the bottom of the inner cavity of the well seat (1) near the left side, and a first magnet (2) is fixedly connected in the groove. A base (4) is provided at the bottom of the inner cavity of the well seat (1) near the right side. A sealing disk (3) is fixedly connected to the left side of the base (4). A plurality of inclined rods (6) are fixedly connected to the left side of the sealing disk (3). The ends of the inclined rods (6) away from the sealing disk (3) are fixedly connected to the second magnet (7). The bottoms of the plurality of second magnets (7) are jointly attached to the top of the first magnet (2). A plurality of support columns (5) are fixedly connected to the bottom of the base (4) near the front and rear sides. The inner cavities of the support columns (5) at the four corners of the bottom of the base (4) are provided with cavities. The outer edges of the support columns (5) at the four corners of the bottom of the base (4) are provided with A vertical groove, wherein the vertical groove and the cavity are mutually connected, an electric telescopic rod (30) is fixedly connected to the top of the cavity, four cross bars (31) are fixedly connected to the outer edge of the electric telescopic rod (30) near the bottom, one end of the cross bar (31) away from the electric telescopic rod (30) passes through the adjacent vertical groove, one end of the cross bar (31) away from the electric telescopic rod (30) is fixedly connected to a connecting plate (32), and the bottom of the connecting plate (32) is fixedly connected to a plug rod (33), and the outer edges of the support columns (5) near the four corners of the bottom of the base (4) are fixedly connected to four connecting plates (29), the inner cavities of the connecting plates (29) are each provided with through holes, and the bottom ends of the plug rods (33) pass through the adjacent through holes, and a receiving mechanism is provided at the top of the base (4).

2. The steel sleeve receiving construction device of a shield machine according to claim 1, characterized in that: The receiving mechanism comprises three steel sleeves (8), the bottoms of the three steel sleeves (8) are jointly attached to the top of the base (4), the front and rear sides of the base (4) are fixedly connected with a plurality of L-shaped threaded rods (13), the front and rear sides of the steel sleeve (8) are fixedly connected with two fixing plates (11) near the bottom, the fixing plates (11) are each provided with a connecting hole, the connecting hole is sleeved on the outer edge of the adjacent L-shaped threaded rod (13), the outer edge of the L-shaped threaded rod (13) is threadedly connected with a threaded cylinder (10), the threaded cylinder (11 0) is located at the top of an adjacent fixed plate (11), the front and rear sides of the steel sleeve (8) are fixedly connected with hooks (9) near the top, the left and right centers of the steel sleeve (8) are provided with first semicircular grooves, the first semicircular grooves are fixedly connected with arc magnets (17), the left and right sides of the steel sleeve (8) are provided with two second semicircular grooves, the second semicircular grooves are fixedly connected with sealing plates (16), the two adjacent arc magnets (17) are arranged to fit each other, and the two adjacent sealing plates (16) are arranged to fit each other.

3. The steel sleeve receiving construction device of a shield machine according to claim 2, characterized in that: A fixed cylinder (18) is fixedly connected to the center of the top of the steel sleeve (8), a telescopic tube (19) is fixedly connected to the top of the fixed cylinder (18), a connecting cover (20) is fixedly connected to the top of the telescopic tube (19), a movable ring (21) is sleeved on the outer edge of the telescopic tube (19) near the top, L-shaped rods (22) are fixedly connected to the left and right sides of the movable ring (21), and two adjacent L-shaped rods (22) are fixedly connected to a fixed ring (23) at one end away from the movable ring (21), and a plurality of discharge holes are opened on the outer edge of the fixed cylinder (18).

4. The steel sleeve receiving construction device of a shield machine according to claim 2, characterized in that: A spring (28) is fixedly connected to the center of the right side of the sealing disk (3), and an elastic cover (12) is fixedly connected to the right end of the spring (28). The elastic cover (12) is located between the base (4) and the adjacent steel sleeve (8).

5. The steel sleeve receiving construction device of a shield machine according to claim 4, characterized in that: The sealing disk (3) is provided with a plurality of limiting holes, each of which is fixedly connected to an externally threaded tube (26), and the right end of each of which is fixedly connected to an elastic tube (14). The elastic cover (12) is provided with a plurality of transverse holes on the left side near the outer edge, and the right end of the elastic tube (14) passes through an adjacent transverse hole and is fixedly connected thereto.

6. The steel sleeve receiving construction device of a shield machine according to claim 5, characterized in that: The right end of the elastic tube (14) is fixedly connected with a nozzle (27), and the nozzle (27) is located in the inner cavity of the elastic cover (12). The outer edge of the external threaded tube (26) is threadedly connected with a nut (25).

7. The steel sleeve receiving construction device of a shield machine according to claim 2, characterized in that: The inner cavity side wall of the base (4) is provided with three first arc-shaped T-shaped grooves, the inner cavity side wall of the steel sleeve (8) is provided with second arc-shaped T-shaped grooves, the first arc-shaped T-shaped grooves are provided with second sealing rings (24), the second arc-shaped T-shaped grooves are provided with first sealing rings (15), and the adjacent first sealing rings (15) and second sealing rings (24) are arranged to fit each other.

8. The steel sleeve receiving construction device of a shield machine according to claim 1, characterized in that: A plurality of insertion holes are provided at the bottom of the inner cavity of the well seat (1) near the right side, and the bottom end of the insertion rod (33) extends to the inner cavity of the adjacent insertion hole.

9. A method for a steel sleeve receiving construction device of a shield machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The base (4) and the sealing disk (3) are first placed inside the well seat (1) by means of a crane, the bottom end of the support column (5) at the bottom of the base (4) contacts the bottom of the inner cavity of the well seat (1), when the bottom end of the plug rod (33) is aligned with the adjacent plug hole, the electric telescopic rod (30) is started, the electric telescopic rod (30) drives the cross bar (31) to move downward, the cross bar (31) drives the connecting disk (32) to move downward, the connecting disk (32) drives the plug rod (33) to move downward, the plug rod (33) is inserted into the adjacent plug hole, the inclined rod (6) on the left side of the sealing disk (3) drives the second magnet (7) to move downward, the bottom of the second magnet (7) contacts the first magnet (2), the bottom of the second magnet (7) is adsorbed and fits with the top of the first magnet (2), thereby limiting the base (4) and the sealing disk (3); S2: After the base (4) and the sealing disk (3) are positioned, the three steel sleeves (8) are placed on the top of the base (4) in sequence by means of a crane. The three steel sleeves (8) are connected by adjacent arc-shaped magnets (17). When the steel sleeve (8) is moved to the top of the base (4), the fixing plates (11) on the front and rear sides of the steel sleeve (8) are aligned with the L-shaped threaded rod (13), and the fixing plates (11) are sleeved on the surfaces of the adjacent L-shaped threaded rods (13). After the three steel sleeves (8) are located together on the top of the base (4), the threaded cylinder (10) is rotated to the surfaces of the adjacent L-shaped threaded rods (13) by means of an external device, and the threaded cylinder (10) positions the fixing plates (11) to position the steel sleeve (8); S3: Then, cement-water glass double liquid slurry is injected into the connection cover (20), the cement-water glass double liquid slurry flows into the telescopic tube (19) and the fixed tube (18), and the cement-water glass double liquid slurry flows out from the holes on the surface of the fixed tube (18), and the cement-water glass double liquid slurry fills the gap between the steel sleeve (8) and the formation to form a water stop ring; S4: When the shield machine enters the base (4) and the steel sleeve (8), the left side of the shield machine will first contact the elastic cover (12), and the shield machine will gradually drive the elastic cover (12) to move to the left, and the elastic cover (12) drives the spring (28) and the elastic tube (14) to be compressed, and the first sealing ring (15) and the second sealing ring (24) will seal between the steel sleeve (8), the base (4) and the shield machine; S5: After the shield machine stops working inside the base (4) and the steel sleeve (8), a water pipe is connected to the left end of the externally threaded pipe (26), and the water pipe and the externally threaded pipe (26) are connected by a nut (25). The water inside the water pipe flows into the elastic pipe (14) through the externally threaded pipe (26), and finally the mud blocks at the blade position on the left side of the shield machine are cleaned through the nozzle (27), thereby reducing the subsequent workload; S6: When the shield machine needs to be taken out, the threaded cylinder (10) is first taken out from the surface of the L-shaped threaded rod (13), and then the hook (9) and the steel sleeve (8) are driven by a crane to be moved out from the top of the base (4), so that the shield machine can be taken out.

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